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Cheap flights from Louisville to Sydney from $625

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Sydney departing on 7/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:25 pm - 6:50 am
SDF
-
SYD
23h 25m
2 stops
Delta Logo
9:15 am - 11:56 pm
SYD
-
SDF
28h 41m
2 stops
$1,191Delta
Tue, Aug 4 - Tue, Aug 11
Delta Logo
1:17 pm - 6:50 am
SDF
-
SYD
27h 33m
2 stops
Delta Logo
9:15 am - 9:33 pm
SYD
-
SDF
26h 18m
2 stops
$1,225Delta
Thu, Aug 6 - Wed, Aug 19
United Airlines Logo
3:35 pm - 7:00 am
SDF
-
SYD
25h 25m
2 stops
United Airlines Logo
10:20 am - 10:15 pm
SYD
-
SDF
25h 55m
2 stops
$1,240United Airlines
Wed, Aug 12 - Thu, Aug 20
Multiple Airlines Logo
7:30 pm - 6:55 am
SDF
-
SYD
21h 25m
1 stop
Multiple Airlines Logo
12:00 pm - 6:18 pm
SYD
-
SDF
20h 18m
1 stop
$1,250Multiple Airlines
Thu, Aug 6 - Wed, Aug 19
Multiple Airlines Logo
1:19 pm - 7:30 am
SDF
-
SYD
28h 11m
2 stops
Multiple Airlines Logo
12:00 pm - 6:18 pm
SYD
-
SDF
20h 18m
1 stop
$1,254Multiple Airlines
Thu, Aug 6 - Wed, Aug 19
Qantas Airways Logo
8:16 am - 7:05 am
SDF
-
SYD
32h 49m
2 stops
Qantas Airways Logo
12:00 pm - 5:23 pm
SYD
-
SDF
19h 23m
1 stop
$1,274Qantas Airways
Wed, Aug 12 - Thu, Aug 20
Qantas Airways Logo
1:19 pm - 6:55 am
SDF
-
SYD
27h 36m
1 stop
Qantas Airways Logo
12:00 pm - 11:17 pm
SYD
-
SDF
25h 17m
1 stop
$1,278Qantas Airways
Wed, Aug 12 - Thu, Aug 20
United Airlines Logo
3:25 pm - 7:00 am
SDF
-
SYD
49h 35m
2 stops
United Airlines Logo
9:30 am - 7:59 pm
SYD
-
SDF
24h 29m
2 stops
$1,306United Airlines
Wed, Aug 26 - Sat, Sep 5
United Airlines Logo
3:25 pm - 7:00 am
SDF
-
SYD
49h 35m
2 stops
United Airlines Logo
9:30 am - 7:59 pm
SYD
-
SDF
24h 29m
2 stops
$1,307United Airlines
Wed, Aug 26 - Sat, Sep 5
United Airlines Logo
3:25 pm - 7:00 am
SDF
-
SYD
49h 35m
2 stops
United Airlines Logo
10:20 am - 8:36 pm
SYD
-
SDF
24h 16m
2 stops
$1,308United Airlines
Wed, Aug 26 - Sat, Sep 5

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Delta flights from Louisville to Sydney

Our best Delta deals on Louisville to Sydney flight tickets
Delta
Aug 5
SDF8:05 amLouisville Intl
32h 45m
2 stops
SYD6:50 amSydney Kingsford Smith
Aug 18
SYD9:15 amSydney Kingsford Smith
24h 18m
2 stops
SDF7:33 pmLouisville Intl
$1,190
Delta
Aug 4
SDF5:25 pmLouisville Intl
23h 25m
2 stops
SYD6:50 amSydney Kingsford Smith
Aug 11
SYD9:15 amSydney Kingsford Smith
28h 41m
2 stops
SDF11:56 pmLouisville Intl
$1,191

Qantas Airways flights from Louisville to Sydney

Our best Qantas Airways deals on Louisville to Sydney flight tickets
Qantas Airways
Aug 12
SDF8:16 amLouisville Intl
32h 49m
2 stops
SYD7:05 amSydney Kingsford Smith
Aug 20
SYD12:00 pmSydney Kingsford Smith
19h 23m
1 stop
SDF5:23 pmLouisville Intl
$1,274
Qantas Airways
Aug 12
SDF1:19 pmLouisville Intl
27h 36m
1 stop
SYD6:55 amSydney Kingsford Smith
Aug 20
SYD12:00 pmSydney Kingsford Smith
25h 17m
1 stop
SDF11:17 pmLouisville Intl
$1,278
Qantas Airways
Sep 21
SDF7:27 pmLouisville Intl
46h 03m
2 stops
SYD7:30 amSydney Kingsford Smith
Oct 8
SYD1:00 pmSydney Kingsford Smith
19h 17m
1 stop
SDF5:17 pmLouisville Intl
$1,382

momondo Fare Finder

 
Customize your flight search to find flights from Louisville to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 30, 2026.
Use the filters below to find and compare flights from Louisville to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 8/4

5:25 pm-6:50 am

2 stops23h 25m

Sydney Kingsford Smith

Tue 8/11

9:15 am-11:56 pm

2 stops28h 41m

$1,191

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 8/6

1:17 pm-6:50 am

2 stops27h 33m

Sydney Kingsford Smith

Wed 8/19

9:15 am-9:33 pm

2 stops26h 18m

$1,225

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/12

3:35 pm-7:00 am

2 stops25h 25m

Sydney Kingsford Smith

Thu 8/20

10:20 am-10:15 pm

2 stops25h 55m

$1,240
Quickest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 8/6

7:30 pm-6:55 am

1 stop21h 25m

Sydney Kingsford Smith

Wed 8/19

12:00 pm-6:18 pm

1 stop20h 18m

$1,250

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 8/6

1:19 pm-7:30 am

2 stops28h 11m

Sydney Kingsford Smith

Wed 8/19

12:00 pm-6:18 pm

1 stop20h 18m

$1,254

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/12

8:16 am-7:05 am

2 stops32h 49m

Sydney Kingsford Smith

Thu 8/20

12:00 pm-5:23 pm

1 stop19h 23m

$1,274

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/12

1:19 pm-6:55 am

1 stop27h 36m

Sydney Kingsford Smith

Thu 8/20

12:00 pm-11:17 pm

1 stop25h 17m

$1,278

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/26

3:25 pm-7:00 am

2 stops49h 35m

Sydney Kingsford Smith

Sat 9/5

9:30 am-7:59 pm

2 stops24h 29m

$1,306

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/26

3:25 pm-7:00 am

2 stops49h 35m

Sydney Kingsford Smith

Sat 9/5

9:30 am-7:59 pm

2 stops24h 29m

$1,307

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/26

3:25 pm-7:00 am

2 stops49h 35m

Sydney Kingsford Smith

Sat 9/5

10:20 am-8:36 pm

2 stops24h 16m

$1,308

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Louisville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Louisville and Sydney?

What is the cheapest month to fly to Sydney?

In general, March is the cheapest month to fly from Louisville to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Sydney during the month of March, then departing from Louisville during the month February is also very affordable. Most momondo users find prices during this month for around $1,228.

Can stopping save me money on Louisville to Sydney flights?

You could potentially save up to 22% on your flight if you consider stops on a Louisville to Sydney flight.

When to book flights from Louisville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Fastest flight time

25h 35m

Direct flights

None
The fastest flight from Louisville to Sydney takes 25h 35m
There are no direct flights from Louisville to Sydney. There are no popular flight routes from Louisville to Sydney.
Search flight deals

Frequently asked questions about flying from Louisville to Sydney

  • How far is Louisville Intl to Sydney Kingsford Smith by plane?

    A flight from Louisville Intl to Sydney Kingsford Smith will travel around 9284.6 mi. A reasonable flight in good conditions will take 25h 35m.

  • When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Louisville to Sydney?

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $662Free CancellationRating
7.8
8,449 reviews
Search Delta flights
United AirlinesPriceFrom $973Free CancellationRating
7.4
9,894 reviews
Search United Airlines flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Penrith
Wollongong
Katoomba
Randwick
Leura
Lithgow
Coogee
Cronulla
Manly
Terrigal
Charlestown
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Sydney for you.

Can I find flights from Louisville to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

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